Lakes / New Jersey / Union County / Middlesex Reservoir
Middlesex Reservoir, New Jersey
79.6 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - New Jersey
40.62 degrees N, 74.31 degrees W - Union County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Middlesex Reservoir Stacks Up
- Larger than 67% of the 295 lakes counted in New Jersey.
- About 11 miles from Newark, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Weequahic Lake | Essex | 8.0 mi | 75.37 acres |
| Canoe Brook Reservoir Number 2 | Essex | 9.2 mi | 76.72 acres |
| Canoe Brook Reservoir Number 1 | Essex | 9.5 mi | 204.16 acres |
| Orange Reservoir | Essex | 10 mi | 61.78 acres |
| Commonwealth Water Company Reservoir Number Three | Essex | 12 mi | 161.61 acres |
| Westons Mill Pond | Middlesex | 12 mi | 98.6 acres |
Straight-line distance between lake centers.
Facts and Figures
Largest Lakes in New Jersey
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Hopatcong | Sussex | 2,493.66 acres | - |
| 2 | Round Valley Reservoir | Hunterdon | 2,272.23 acres | - |
| 3 | Wanaque Reservoir | Passaic | 1,971.09 acres | - |
| 4 | Van Sciver Lake | Burlington | 1,396.61 acres | - |
| 5 | Spruce Run Reservoir | Hunterdon | 1,354.88 acres | - |
All 295 New Jersey lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 167762641). Verified October 30, 2026.